If you are using Invisalign teeth straighteners, keeping your aligners clean is an essential and often neglected part of the process. Not only does it help maintain their invisible appearance, but it also prevents bacteria and odours from affecting your oral health and treatment results.
One of the most effective ways to clean your aligners is with Invisalign Cleaning Crystals, a specially formulated solution that has been designed to remove plaque and keep your trays fresh and clear. But how do you use them properly?
This guide explains exactly how to use Invisalign cleaning crystals, how often to clean your trays, and what to avoid when doing so, so you can make the most of your Invisalign journey without compromising hygiene or comfort.
What Are Invisalign Cleaning Crystals?
Invisalign Cleaning Crystals are specially designed cleaning sachets that have been developed by Align Technology, the makers of Invisalign. They are created to clean and sanitise:
- Invisalign aligners
- Invisalign retainers (such as Vivera retainers)
- Other clear plastic dental appliances
The crystals dissolve in water to create a cleaning solution that removes plaque and kills bacteria. When used on a daily basis, they help keep your aligners feeling fresh and comfortable to wear.
Unlike toothpaste or soap, Invisalign Cleaning Crystals are non-abrasive and pH-balanced, which means that they will not scratch or discolour your trays over time.
If you are still exploring different types of braces and how they compare, you can read more here.
How to Use Invisalign Cleaning Crystals: Step-by-Step
Using Invisalign Cleaning Crystals is a quick and simple process, and it can easily fit into your daily routine. Here is exactly how to use them:
1. Remove Your Aligners
Take out your Invisalign aligners and give them a quick rinse under lukewarm water to remove saliva and loose debris.
2. Prepare the Cleaning Solution
Fill a clean glass or container with enough lukewarm water to fully submerge both aligners. Avoid using any hot water though, as it can warp the plastic.
Open one sachet of Invisalign Cleaning Crystals and pour the contents into your water. Stir it in gently to dissolve the crystals.
3. Soak the Aligners
Place both of your aligners into the solution and leave them to soak for 15 to 30 minutes. During this time, the solution will break down plaque and eliminate any bacteria.
4. Rinse Them Thoroughly
After soaking, remove your aligners and rinse them thoroughly under running water. You can also gently brush them with a soft bristled toothbrush to remove any loosened residue.
Make sure no cleaning solution remains on the trays before putting them back into your mouth.
How Often Should You Use Invisalign Cleaning Crystals?
Ideally, you should use Invisalign Cleaning Crystals once a day, typically in the morning or evening as part of your brushing routine. Regular use helps prevent:
- Bacterial build-up
- Unpleasant odours
- Discolouration or cloudiness
- Residue from dried saliva or plaque
That said, if you are travelling or are very pressed for time, rinsing and brushing your aligners with a soft toothbrush and some mild soap can serve as a temporary substitute, but the crystals offer the most thorough clean.
Benefits of Using Invisalign Cleaning Crystals
Consistent use of cleaning crystals offers several advantages over standard cleaning methods:
- Gentle yet effective: They remove plaque without damaging the plastic.
- Keeps aligners clear: Helps preserve the “invisible” look of Invisalign trays.
- Reduces bacteria: Improves oral hygiene by sanitising your aligners.
- Freshens your aligners: Removes odours caused by food particles and bacteria.
- Approved by Invisalign: Specifically formulated for their aligner material.
Can You Reuse the Solution?
No, unfortunately not. The cleaning solution should be used once and discarded afterwards. It loses its effectiveness after a single use and can become a breeding ground for bacteria if reused.
Always start with fresh water and a new sachet each time you clean your aligners with crystals.
Where Can You Buy Invisalign Cleaning Crystals in the UK?
Invisalign Cleaning Crystals are widely available from:
- Online retailers (such as Amazon or dental supply websites)
- Invisalign dentists and orthodontic providers
- Some high street pharmacies
If you are undergoing treatment with Tooth Club, your clinician may provide these during your appointments or offer guidance on trusted retailers.
Other Tips to Keep Aligners Clean
In addition to using cleaning crystals, keep your aligners clear and odour-free by:
- Rinsing them each and every time you take them out
- Never eating or drinking anything other than water while you are wearing them
- Brushing and flossing your teeth before putting your aligners back in
- Storing them in a clean and ventilated case when they are not in use
- Avoiding toothpaste or harsh cleaners, which can scratch the plastic
At Tooth Club, we provide every Invisalign patient with a tailored aftercare guide — including tips on aligner hygiene, diet and how to maintain your results long after treatment ends.